Foot Skin Disease - NYC Podiatrist Manhattan and White Plains, NY br Dr. Tara Blitz discusses the symptoms, causes and treatments for Foot Skin Disease. br br Allergies: Two kinds of skin allergies, or dermatitis, are caused by substances coming in contact with the skin: primary irritant dermatitis and allergic contact dermatitis. Primary irritant dermatitis is a non-allergic reaction of the skin resulting from exposure br Athlete's Foot: Athlete's Foot, also known as tinea pedis, is a skin disease caused by a fungus that usually occurs between the toes. The fungus attacks the feet because shoes create a warm, dark, and humid environment that encourages fungus growth. br Blisters: Most blisters on the feet are caused by friction and do not require medical attention. New skin will form underneath the affected area and the fluid built up in the blister is simply absorbed back into the tissue.